英语翻译

英语翻译
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Milan,the second largest city of Italy,has won an undesirable world record.Of the 54 big cities studied by the World Health Organization and the United Nations,Milan was considered to have the worst air pollution.
According to these two 10-year studies,the level of air pollution in Milan is twice as high as the levels in Paris and Beijing and three times those in Tokyo and London,and four times that in New York.The reason for Milan’s bad pollution,to some experts,is that the city lies in a valley that holds back the poisonous( 有毒的 ) gases.
Though Milan has taken some measures to lower the level of pollution,the situation is still worrying.People joke to each other,“If you’re traveling to Milan,be sure to bring your gas mask(面具).”
In order to reduce the use if private cars in 1979,the Milan began an interesting experiment:Passengers in the city buses didn’t have to pay for their tickets.
1.Which is NOT mentioned in the passage?
C.Milan’s water is regarded to be worst polluted.
2.Which of the following cities keeps the lowest level of air pollution?
D.New York
3.Why is the air pollution in Milan so serious?
A.Because the city lies in a place where it is difficult for polluted air to move
away.
4.According to the passage,which of the following is TRUE?
B.Milan has taken some measures,but the air pollution is still troublesome.
5.The government of Milan encouraged the people to take city buses for free in order to ______.
D.reduce the pollution made by cars